Abstract: A transient electromagnetic device with variable shape and turns includes squares, a transmitting coil carrying frame, a transmitting coil, a turns-variable device, a current generator and a working power supply. The transmitting coil carrying frame is arranged inside the transmitting coil; the transmitting coil carrying frame is configured as a carrier of the transmitting coil, and configured for adjusting a side length of the transmitting coil and a shape of the transmitting coil; the square is configured for clamping and connecting the transmitting coil and the transmitting coil carrying frame to fix the transmitting coil to the transmitting coil carrying frame. The current generator is configured for generating transient current; the turns-variable device is configured for changing the turns of the transmitting coil; and the transmitting coil is configured for transmitting the transient current to a target area to be measured.

Abstract: A releasing buckle device of electrical lock comprises case, micro-motor, worm-shaft and worm-wheel, and locking latch body and so on. It also comprises swing buckle, twist spring, wherein the swing buckle and the twist spring is set on the lock body beside worm-wheel through pin shaft. The buckle end of the swing buckle clutches or withstands the propping part corresponding to the body of the locking latch. It can be tugged during locking and can be released off the locking latch during unlocking buckle, and the micro-motor used for driving can be installed precisely orientated.

Abstract: The present invention relates to a novel catalyst combination and a novel ocess for the synthesis of methanol and methyl formate (MF), and more specifically to the production of methanol and MF by contacting syngas under relatively mild conditions in a slurry phase with the novel catalyst combination comprising unreduced copper chromite prepared using specifical method, alkali alcoholates, a nonionics and a non-polar solvent. The nonionics, for example, C.sub.8 H.sub.17 --(C.sub.6 H.sub.4)--O--(C.sub.2 H.sub.4 O).sub.n H (where n is between 4 and 60) is used in the amount that is at least 5 vol. % of the slurry (liquid reaction medium). And the non-polar solvent having a dielectricity constant between 2 and 3 at 20.degree. C. is used in the amount that is at least 50 vol. % of the slurry. The present invention allows the synthesis of methanol and MF to occur in the temperature range of approximately 100-150.degree. C., and the pressure range of 3-8 MPa.